Home / 6,617.16-9,917.64-3,105

Finding the Fourth Proportional to 6,617.16, 9,917.64 and 3,105

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Solution

The fourth proportional to 6,617.16, 9,917.64 and 3,105 is: 4,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.16 : 9,917.64 = 3,105 : x
  2. Step 2: Convert to fraction form
    6,617.16/9,917.64 = 3,105/x
  3. Step 3: Cross multiply
    6,617.16x = 9,917.64 × 3,105
  4. Step 4: Simplify right side
    6,617.16x = 30,794,272.20
  5. Step 5: Solve for x
    x = 30,794,272.20/6,617.16
  6. Step 6: Final answer
    x = 4,653.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.